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annotate src/video/xbios/SDL_xbios_blowup.h @ 1585:980d2a0dc2a3

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Date: Tue, 4 Mar 2003 15:05:31 -0800 From: "Jim" Subject: [SDL] Frame Buffer patches... Okay I'm new at patch generation - so please tell me if there's a better way I could have done this. Attached are two patch files generated with 'cvs diff -u' SDL-fb-open-lock.patch applies to SDL_fbvideo.c Modifies the open loop to check /dev/fb/0 found on devfs... Modifies the lock code to return failure if the current virtual terminal is not the one opened for frame buffer writing... Lock would hang forever if switched away (ctrl-alt-F1) ... SDL-fb-mousedrv-screensave.patch applies to SDL_fbevents.c Switches default mouse mode based on SDL_MOUSEDRV - currently only accepts PS2 - otherwise default is MS Mouse. When the screen is switched - exisiting code (wrapped in ifdef SAVE_SCREEN_COTENTS) would save the wrong bit of the screen.... ( I run frame buffer 1600x1200, the size I requested was 800x600 - the save would save the top 800 lines (non biased) and restore them... Adding screen->offset fixed that ) However, if that option is not set, then a call to SDL_UpdateRect (full screen) is made. (which may have had it's contents changed since the screen is not entirely locked because of lock-failure patch) Jim [patches slightly tweaked for SDL 1.2.10]
author Sam Lantinga <slouken@libsdl.org>
date Wed, 22 Mar 2006 07:48:22 +0000
parents d910939febfa
children 782fd950bd46 c121d94672cb a1b03ba2fcd0
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2004 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Library General Public
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7 License as published by the Free Software Foundation; either
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8 version 2 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Library General Public License for more details.
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14
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15 You should have received a copy of the GNU Library General Public
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16 License along with this library; if not, write to the Free
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17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 /*
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25 Blowup extension definitions
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26
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27 Patrice Mandin
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28 */
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29
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30 #ifndef _SDL_xbios_blowup_h
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31 #define _SDL_xbios_blowup_h
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32
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33 #include "SDL_xbios.h"
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34
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35 /*--- Types ---*/
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36
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37 typedef struct {
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38 /* 64 bytes */
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39 unsigned short enabled; /* Extended mode enabled ? 0=yes, <>0=no */
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40 unsigned short dummy10[6];
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41 unsigned short registers_0E; /* value for register 0xffff820e */
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42 unsigned short registers_10; /* value for register 0xffff8210 */
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43 unsigned short dummy11[23];
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44
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45 /* 64 bytes */
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46 unsigned short width; /* width-1 */
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47 unsigned short height; /* height-1 */
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48 unsigned short dummy20;
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49 unsigned long screensize; /* screensize in bytes */
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50 unsigned short dummy21[8];
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51 unsigned short virtual; /* Virtual screen ? */
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52 unsigned short virwidth; /* Virtual screen width */
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53 unsigned short virheight; /* Virtual screen height */
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54
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55 unsigned short dummy22;
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56 unsigned short monitor; /* Monitor defined for this mode */
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57 unsigned short extension; /* Extended mode defined ? 0=yes, 1=no */
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58 unsigned short dummy23[13];
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59
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60 /* 64 bytes */
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61 unsigned short dummy30;
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62 unsigned short registers_82[6]; /* values for registers 0xffff8282-8c */
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63 unsigned short dummy31[9];
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64
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65 unsigned short dummy32;
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66 unsigned short registers_A2[6]; /* values for registers 0xffff82a2-ac */
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67 unsigned short dummy33[9];
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68
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69 /* 64 bytes */
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70 unsigned short registers_C0; /* value for register 0xffff82c0 */
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71 unsigned short registers_C2; /* value for register 0xffff82c2 */
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72 unsigned short dummy40[30];
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73 } __attribute__((packed)) blow_mode_t;
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74
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75 typedef struct {
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76 blow_mode_t blowup_modes[10];
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77 unsigned char num_mode[6];
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78 unsigned long dummy;
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79 unsigned short montype;
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80 } __attribute__((packed)) blow_cookie_t;
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81
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82 /*--- Functions prototypes ---*/
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83
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84 void SDL_XBIOS_BlowupInit(_THIS, blow_cookie_t *cookie_blow);
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85
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86 #endif /* _SDL_xbios_blowup_h */